package com.hadoop.kv;

import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Reducer;

import java.io.IOException;


/**
 * Created by yu756 on 2020/1/18 17:29
 */
public class KVTextReducer extends Reducer<Text, IntWritable, Text, IntWritable> {

    IntWritable v = new IntWritable();


    @Override
    protected void reduce(Text key, Iterable<IntWritable> values, Context context) throws IOException, InterruptedException {
        int sum = 0;
        for (IntWritable value : values) {
            sum += value.get();
        }
        v.set(sum);

        context.write(key, v);


    }
}
